Roof-mounted building fresh air ventilator



FIG. 1 is a perspective view showing the top, front and right side of the roof-mounted building fresh air ventilator of my design.

FIG. 2 is a perspective view showing the bottom, rear and left side of the roof-mounted building fresh air ventilator of FIG. 1. 

The ornamental design for a roof-mounted building fresh air ventilator, as shown. 